If now we turn back to the question with which I started, whether men began in a state of peace or a state of war, we see the answer. They began with both together. Which preponderated is a question of the intensity of the competition of life at the time. When that competition was intense, war was frequent and fierce, the weaker were exterminated or absorbed by the stronger, the internal discipline of the conquerors became stronger, chiefs got more absolute power, laws became more stringent, religious observances won greater authority, and so the whole societal system was more firmly integrated. On the other hand, when there were no close or powerful neighbors, there was little or no war, the internal organization remained lax and feeble, chiefs had little power, and a societal system scarcely existed.
The four great motives which move men to social activity are hunger, love, vanity, and fear of superior powers. If we search out the causes which have moved men to war we find them under each of these motives or interests. Men have fought for hunting grounds, for supplies which are locally limited and may be monopolized, for commerce, for slaves, and probably also for human flesh. These motives come under hunger, or the food-quest, or more widely under the economic effort to win subsistence. They have fought for and on account of women, which we must put partly under love, although the women were wanted chiefly as laborers and so, along with the slaves, would come under the former head. They have fought to win heads, or scalps, or other trophies, and for honor or dignity, or purely for glory; this comes under the operation of vanity. They have fought for blood revenge, to prevent or punish sorcery, and to please their gods; these motives belong under the fear of superior powers. It was reserved for modern
